Soil chemical properties | Treatments | ||
---|---|---|---|
Control | HanRa canola | YongSan canola | |
pH | 6.17 ± 0.03b | 6.47 ± 0.03a | 6.23 ± 0.03b |
EC (dS m− 1) | 1.02 ± 0.00b | 0.48 ± 0.00c | 2.52 ± 0.01a |
CEC (cmolc kg− 1) | 17.50 ± 0.10a | 17.44 ± 0.40a | 16.88 ± 0.21a |
SOM (g kg− 1) | 26.23 ± 0.24a | 26.43 ± 0.40a | 26.26 ± 0.37a |
Total N (g kg− 1) | 1.6 ± 0.01a | 1.6 ± 0.00a | 1.7 ± 0.00a |
NO3− (mg kg− 1) | 6.40 ± 1.95c | 12.13 ± 0.55b | 18.30 ± 0.55a |
NH4+ (mg kg− 1) | 7.43 ± 0.23b | 9.37 ± 0.09a | 8.37 ± 0.20ab |
AP (mg kg− 1) | 687.30 ± 2.91a | 521.20 ± 1.91b | 534.95 ± 2.80b |
K (cmolc kg− 1) | 0.51 ± 0.01c | 1.00 ± 0.01b | 1.18 ± 0.01a |